Coy Potts - GIS Professional

This project page contains a compilation of maps that I created while in my advanced GIS course at Eastern Illinois University. They show a progression of learning with more complicated processes being involved as the semester progressed. These maps are ordered in order of their completion, with the most recent one at the bottom.

National UFO Reporting Center Sightings: This map was the first step in a series of maps involving a data point layer from the National UFO Reporting Center database. Firstly I clipped the data layer to the contiguous United States boundary. Secondly I performed some statistial calculations that allowed me to display the areas that with the most sightings, as well as confirmed that there was less than 1% likelihood that this clustered patter could be the result of random chance.

Hotspot Analysis: This map shows the result of a hotspot analysis with patches of areas that contained the most and least amount of sightings.

Thiessen Polygons: This map displays a color map of the most amount of sightings that are in proximity to a military airfield and/or major city.

Snow's Cholora Experiment: This map is the first in a series involving data points collected by John Snow in the Soho District of London. This first map is a simple georefernced image of Snow's map on top of a modern street layout of the Soho District.

Snow's Data Points: This map displays Snow's data points and well locations digitized from his original map. I ran a new function in order to determine which death counts were in the highest numbers and closest to a particular well.

Thiessen Polygons Take 2: This map shows the thiessen polygons with a color code for the number of deaths located within each region.

Statistical Findings: This map shows the location of the cause of the cholora outbreak using statistiacal functions to determine the hotspot of deaths in relation to the nearest well.

Tornadoes: This map shows every F4 and F5 scale tornado swath in a particular region of the United States between 1950 and 2011, also illustrating the general area of the United States that is most affected by large scale tornadoes. I also created a pie chart to show the number of tornadoes for each month, which clearly shows the tornado season.

Honeybee Migration: This map shows the migration pattern of Honeybees from Mexico into the United States between 1990 and 2009. A timeline animation was also created with this map, but it can not be uploaded here.

Earthquakes: This map uses thiessen polygons to show areas with the most occurances of earthquakes from 1800 to 2009 in relation to major cities in the contiguous United States. The colored the polygons to show the average magnitude. I also created a bar graph to show the distribution of earthquakes in each year.